
PROGRAMMING
B–63534EN/02
20. AXIS CONTROL FUNCTIONS
575
The EGB automatic phase synchronization is made on the premise that
the rotation of the slave axis is the same direction as the master axis. Refer
to the following chart.
+ Command
+ Feedback
Kp/S
Kp/S
Motor
+
–
+ Feedback
+ EGB command
+
–
+ Direction
+ Direction
a/A
[Master axis]
[Slave axis]
Sensor Spindle
MotorSensor Spindle
When this function is used, the SFR/SRV function in Cs contouring mode
(*) can not use. If you want to change the rotary direction of the master
axis, you should change the sign of the master axis command.
(*)The SFR/SRV function in Cs contouring mode
The SFR/SRV signal is a serial spindle control signal that determines
the direction of rotation of the spindle in Cs contouring mode.
Num-
ber
Message Contents
181 EGB AUTO PHASE
FORMAT ERROR
Format error in block in which G80 or G81
was specified by EGB automatic phase
synchronization
(1) R is data outside of the instruction
range.
(2) Before the G81R2 command, the
master spindle isn’t returned to in the
reference point. (In case of Spindle
EGB)
D About the direction of
the rotation (This item is
for spindle EGB.)
Alarms